Kauai Flightless Stag Beetle vs Spider Beetle

Side-by-side species comparison

Attribute Kauai Flightless Stag Beetle Spider Beetle
Scientific Name Apterocyclus honoluluensis Mezium americanum
Order Coleoptera Coleoptera
Family Lucanidae Ptinidae
Size 1.5-3 cm 2-4 mm
Habitat Mountains Underground
Diet Herbivores Detritivores
Regions United States North America, Europe
Conservation Endangered Least Concern

Kauai Flightless Stag Beetle

A flightless stag beetle endemic to the island of Kauai in Hawaii. Larvae develop in rotting logs of native trees.

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Did You Know?

It is the only stag beetle in Hawaii and has completely lost its ability to fly.

Spider Beetle

A globular beetle that closely resembles a small spider in shape and movement.

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Did You Know?

Its round shiny abdomen and long legs give it a convincing spider-like appearance.